When I copy the the field to the footer,
=Nz([Waste],0)+Nz([FacilityCharge],0)+Nz([TankWash],0)+Nz([H2O/BTU/Solids/Weight Surcharge],0)+Nz([StateFee],0)+Nz([Transportation],0)++Nz([Insurance/SecurityCharge],0)+Nz([Loading Demurrage&Equipment],0)
For some reason it just won't add up correctly...